Packing for oil wells



July 3, 1928.

C. STARYSKY PACKING FOR OIL WELLS m WW 5 m u T ATTORNEY July 3, 192s, 1,676,168

C. STARYSKY PACKING F011 OIL wELL's Filed Jan. 15, 1927 2 sheets-sheet 2 mlllllml @5 20 fafa j 7. I /Z 56 i 1 JIT im Charlas Samisxi ATTORNEY Patented July 3, 1928.

u iT E sr i1 CHARLES STARYSKY, OF MARYSVILLE, TEXAS.

PACKING son, oIL WELLS.v

Application mea january 13, 1927. serial No.160,99o.

In the present pumpin'g tubing packers the constant' weight is required to maintain the packer in expanded position, thus leaving a slack in the tubing which will of necessity cause loosening of the tubing joints by reason of the motion or vibration, thereby giving considerable trouble in the operation of fishing. Furthermore, the pumping rods working in the slack tubing l0 cause wear of the rods and tubing.

It is very often impossible to. set a screwa packer suiliciently tight to cut off all the water because of the fact that the. slack causes binding against the casing at thetime of screwlng and such packers cannot be released by a reverse screwing and must be directly pulled, ,thereby causing a breakage in the shing implements.

It is an object of the present invention to provide a packer" which may be readily placed in position and by a simple operation be expanded and locked into place, thethe provision of a packer which may be,

employed at various elevations in, a welI vand having interfitting members adapted to maintain the packing in expanded relation, the intertted members being readily released by a sufficient pull which will not require such la force'as may cause breakage in the pulling elements.

Another object of the invention lis the provision of an eficient simple and durable packing which may be employed as askeleton vpacker in any relation where slack is intendedv to be eliminated in joined tubing. vThis inventionv will be best understood from a consideration of the following detailed description, in view of the accompanyng 'drawings forminga part of the specification; nevertheless it is to be understood that the invention isnot confined to 65 .the disclosure, being susceptible of such changes and modifications which shall define no material departure from the salient fea turcs of the invention as expressed in the appended claims.

In the drawings:

Figure 1 is a vertical section of thelower end of a well casing showing my packing in. position before being expanded,

Figure 2 is a vertical section of the lower end'of a well casing showing my packing expanded and fixed in position, j

Figure 3 is a' horizontal section taken along the line 3 3 of Figure l,

Figure 4 is an enlarged detail view in elevation of my packing, Figure 5 is a vertical section of my packing after being fixed and expanded, and

Figure 6 is a .view in perspective and partly in section of my packing expanded and fixed in position. 75

Referring more .particularly to the drawings 10 designates a customary well casing and in which is mounted ay weight joint 1 1. This weight jointy combines the function of connecting the cable, not shown, with the pump` plunger 12, and is adapted to expand an oil well packer, generally designated by the numeral 13, within the well casing. The Jweight joint 11 has a suitable connection with the stem 14 of the plunger 12.l The weight joint carries a substantial l disc-plate which is capable of beinglet down upon the lower abutment 15 sothat the weight of the weight joint isimposed upon the skeleton joint 16 and so transfers it to the packer 13, the disc-plate being designated by the numeral 17. All ofthe parts referred to above forrn no part ofthe present invention as they have been described and claimed in my co-pending application, S. N. 41,785, filed lJuly 6, 1925.

The packer, designated by the numer-al y13, and shown 1n .position in a casingin Figures 1 and 2, consists of a hollow tubu- E lar member18 having corrugationstintenmediate its ends to provide ribs 19. The.. upperv end of the member 18 has anA expansion stopring 20 formed integrally with the said lmember and is movable within an expansion chamber 21 formed in the inner 105 `wall of the stop 22 of the telescoping member 23. The lower end of the male member 18`is provided with a ring 24 spaced from the stock 25 of said member. The reduced lower end 26 of the stock is provided with external threads 27 and internal threads 28. The threads 2:7 are adapted t9 receive the threads of the next lower connection indicated at 29. The inner threads 28 are adapted to receive the threads on the lower succeeding tubing.

The telescopic member 23 basan externalflange 30 spaced 'from a shoulder 31 at the lower end of the stock 22 to provide a space to receive a ring portion 32 of the rubber` next upper connection. This reduced portion is also internally threaded, at 36, into which is threaded the upper tubular connection.

The lower cylindrical portion 37 lof the member 23 is provided with a plurality of corrugations to receive the ribs 19 of the-` member 18. a plurality of slits 38 running longitudinally packer a set collar may-be used to withdraw The cylindrical portion 37-l1as of said portion to provide' resilient lingers 39, which are adapted to be forced over the ribs 19 for a purpose which will be presently explained. These iingers at their lower free ends are tapered at 40 -adapted to be rereceived Within the tapered seat 41 of the expansible packing 33. The member 23 may be formed of any suitable metal, but the metal must be of such a'character that the lingers 39 will be resilient so that they may be expanded When-being moved over the annular ribs 19 when the member 23 is forced into telescopig relation with the member 18.

The packing 33 has' at its lower end an internal groove 42 adapted to receive theannular flange 24 on the member 18 and a portion 43 of the packing is adapted to be received between the flange 24 and a shoulder 44 formed on the upper end of the stock 25 of the member 18. The inner circular portion ofthe ring 43 of the packing 33 embraces the cylindrical portion 45 of the member 18. This portion 23 is directly opf posite the wired section 46 at the lower end of the packing 33. Thefinner wallof the packlng 33 1s cylindrically shaped generally throughout its length except the lower end,

as shown at 47, which is enlarged to neatly engage the cylindrical portion 48* of the member 18. 1

The application of m deviceis as follows: The packing inclu ing the telescoping members 18 and 23 and the expansible packing 33 are properly co-ordinated so that they will appear in the-positions shown in Fig. L'1. The `packing is then let down at the proper position and sulcient. weight is applied-to the stock 22 of the telescoping member 23, forcing the stock downwardly p and likewise the telescoping member 23 withI the fingers 39 riding over the ribs 19 ofthe member 1,8 until the corrugations -in the lingers neatly fit the ribs 19 of the member 18 whence the members 18 and 23 are locked together against movement. At thisl time the shoulder at the lower end ofthe stock 22-acts upon the upper end of the packing 33, compressing said packing and causing the same to expand and snugly engage the inner wall of the casing 10. As has been stated the fingers 39 are resilient and, therefore, will easily ride over the ribs 19 until the corresponding corrugations and' ribs of the two members will be interlitted. It must be borne in mind that `the stock 25, of the male member 18 is maintained against movement during the compressing of the eX-.

pansible packing 33.

In case the packer is employed as a top tubing.y In any case,-where the packer is removed, a suflicient pull. on the packer will release the female member 23 from the male member 18 so`thatv the. compression .in the packin or sleeve 33 will be relieved and the packer-ginay then be withdrawn.

A packing comprising a cylindrical member having nan enlarged portion provided with a chamber, a second cylindrical member received within the first member and having a stop ring movable in said chamber for limiting the movement-of the first mentioned member relative to the secondmember, each of said members has cooperating corrugations and ribs for locking the members together when the first mentioned member is moved relative to the secondmember, the first member having spring lingers carrying sald ribs for facilitating the locking'of the sections together; a shoulder carried by each member and an expansible and contractible sleeve embracing the members and etl having an end in engagement with a shoulsleeve being provided with an, annular groove and avrib Qn each cylindrical member adapted to be received within a groove of the sleeve.

CHARLES s'rARrsKr.A 

